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Capsella bursa-pastoris
shepherd's-purse
Capsella bursa-pastoris
Shepherd's purse is a small, annual flowering plant in the mustard family (Brassicaceae). It is native to Western Asia and Eastern Europe but has become naturalized worldwide. It is easily recognizable by its basal rosette of lobed leaves and its characteristic heart-shaped, flattened seed pods that resemble a shepherd's purse. It typically grows to a height of 10-30 cm and produces small white flowers. It's often considered a weed in agricultural settings due to its rapid reproduction and ability to thrive in disturbed soils.
CategoryDetails
Culinary UsageEdible plant
Medicinal UsageMedicinal Usage
Duration to maturity2 months to harvest
Estimated Plant Lifespan12 months lifespan
Sun Requirements4-6 hours direct sunlight (Partial Sun)
Pollination

Method: self pollination

Notes: Primarily self-pollinating, but can also be cross-pollinated by insects.

Watering Requirements

Method: top water

Frequency: when soil is dry

Notes: Prefers consistent moisture but can tolerate short dry spells.

Humidity Requirements

Level: moderate

Maintenance: Avoid overhead watering that can encourage fungal diseases if air circulation is poor.

Care InstructionsWhile generally considered a weed, it can be encouraged to grow in specific areas. If grown for culinary or medicinal use, harvest young leaves before flowering for best flavor and potency. Remove spent flowers to prevent excessive self-seeding if desired.
Temperature Range

Min: -10°C

Max: 30°C

Alternative NamesCommon Shepherd's-purse, Thlaspi bursa-pastoris, Case Weed, Pepper Plant, Shepher's Tree, Bursa bursa-pastoris, Nasturtium bursa-pastoris, Rodschiedia bursa-pastoris, Thlaspi bursa-pastoris pinnatifolia
Lactuca sativa
lettuce
Lactuca sativa
Shepherd's purse can help deter certain pests that might affect lettuce, and its rapid growth can fill in spaces in a vegetable garden.
Apium graveolens
Celery
Apium graveolens
Companion planting with celery is thought to benefit from shepherd's purse's ability to attract beneficial insects and its tolerance for similar soil conditions.
Spinacia oleracea
Spinach
Spinacia oleracea
Spinach and shepherd's purse can grow well together, with the latter potentially providing some ground cover and nutrient cycling benefits.
Amaranthus retroflexus
Redroot Amaranth
Amaranthus retroflexus

Both plants thrive in disturbed soils and compete for similar nutrients, water, and light. Red-root pigweed can grow much larger and shade out shepherd's purse.

Chenopodium album
Common Lambsquarters
Chenopodium album

Lambsquarters is a vigorous competitor that can outcompete shepherd's purse for resources due to its faster growth and larger biomass.

Flea Beetles

Small, shiny, dark-colored beetles that jump like fleas. They chew small, round holes in the leaves of young plants, which can stunt growth and reduce vigor. Severe infestations can defoliate plants.

Cabbage Aphids

Small, soft-bodied insects that cluster on new growth and undersides of leaves. They suck sap from the plant, causing distortion, yellowing, and weakening. They can also excrete honeydew, leading to sooty mold.

Cabbage Worms

Larvae of the Cabbage White butterfly. They are velvety green caterpillars that consume large amounts of leaf tissue, leaving ragged holes and skeletonized leaves. They also produce fecal pellets, which can be unsightly.

Steps:

    • Shepherd's purse seeds can be sown directly into the garden soil in early spring or fall.
    • Prepare a fine seedbed by removing weeds and debris.
    • Sow seeds thinly on the soil surface and lightly cover with about 1/8 inch of soil.
    • Keep the soil consistently moist until germination, which typically occurs within 7-14 days.
    • Thin seedlings to about 6 inches apart if they are overcrowded.

Neem Oil

Effective against a broad spectrum of insect pests including aphids and flea beetles.

Insecticidal Soap

Used to control soft-bodied insects like aphids.

Bacillus thuringiensis (Bt)

A biological pesticide effective against caterpillar pests like cabbage worms.